The Argentine has continually struggled at White Hart Lane whilst the Spaniard is in top form at Genoa.
One player that Tottenham Hotspur have always believed to be very talented was their young Spaniard Iago Falque. The flying winger has an illustrious history. Spells at Real Madrid, Juventus and Barcelona were the precursor to his Spurs arrival in 2012.
But he struggled with injury problems at White Hart Lane and last summer it was confirmed by Italian side Genoa that they had signed Falque, for a fee reported to be in the £4 million region according to Spanish site Vavel.
Another player Tottenham have had high hopes foris Erik Lamela.
Lamela was signed by Franco Baldini in 2013 as the main replacement for Real Madrid bound Gareth Bale. He cost the club a fee in the region of £30 million, according to The Telegraph. But the former AS Roma star has struggled to cement a regular spot in the Spurs first-team.
He struggled with injury throughout his debut term, playing just 17 times for the club in 2013-14, scoring once against Moldovan minnows FC Sheriff Tiraspol.
This season he has kept himself fit, playing 43 times. Despite his more regular playing time he has struggled to thrive in the Spurs first-team and rumours are abounding he could be on his way in the summer.
It certainly seems as though the prices don't match up for these two wing wizards.
While Lamela has struggled to impress at Tottenham Falque has shone at Genoa.
He has scored 10 goals in 27 appearances for the Italian side, while Lamela has managed just five in 43 - a massive gap in results.
Lamela has more assists, with six this season compared to Falque's three, but that is certainly not worthy of a massive £26 million in valuation.
Maybe Tottenham should have let Lamela go in the summer and kept hold of the Spaniard now making a name for himself in Italy.